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61 �� <br /> HOW TO LOCATE THE POSITION OF THE <br /> 71 SO AT 95%TANK CAPACITY Measuring Stick <br /> The length of the upper tube and the placement of -� `•the 71 SO valve body determine the shut-off point. <br /> Following the standard instructions for the OPW <br /> 71SO will provide for initial shutoff at 95%. In all <br /> cases, the upper tube length must be a minimum of <br /> 6-112"plus the length of the riser pipe. All length - <br /> measurements are in inches. Riser Pipe ! I <br /> INSTRUCTIONS (A) <br /> with Face To Tank (B) <br /> Seal Adaptor C <br /> 1.) Find tank capacity(in gallons)from tankI Top(I.D.) To Tank <br /> calibration chart provided by tank manufacturer. I' ( Bottom <br /> i t <br /> 2.)Calculate 95%of capacity. =) <br /> 6-112" <br /> v i t I q 3.)Locate the 95%volume number on the tank <br /> i calibration chart. <br /> �fll 4.)Find the dipstick number(X)which corresponds Figure 1 <br /> to the 95% tank volume. And,find the dipstick <br /> �; 11•i z l ti number(Y)which corresponds to the EXAMPLE <br /> 100%volume. 1.) For an Owens-Coming Model G-3 Fiberglass® <br /> Tank Calibration Chart: <br /> 5.)Subtract the dipstick number(X)from the tank Tank Capacity- 10,000 gal., nominal 9,403 gal. <br /> 1L .31 diameter(Y)to find the upper tube reference NOTE: Use actual capacity only <br /> number(Z). <br /> = t0• S (Y)-(X)=(Z) 2.)95%of actual tank capacity=0.95 x <br /> 6.)Subtract 2"from(Z)to find the upper tube depth 9403 gal. =8933 gal. <br /> (C). 3.)The closest number which is less than 8933 gal. <br /> (Z)-2"= C Is 8910 gal. Choosing the closest number less <br /> than 95%of actual capacity ensures that the <br /> 7+1s`C less than 6-112"? initial shutoff will occur when the tank is no more <br /> than 95%full. <br /> Ir NO Upper tube length is C plus the distance <br /> from the top of the Face Seal Adaptor 4.)The calibration chart reading of 8910 gal. <br /> installed on the riser pipe to the inside, top corresponds to a dipstick measurement of 82". <br /> lip of the storage(A). <br /> T1'f 5.) Dipstick number(X)=82" <br /> Z Upper Tube Length =C + (A) Tank diameter(Y)=92" <br /> (Y)-(X)=(Z) (92"-82" = 10") <br /> YES Upper tube length is 6-112" plus the riser (Z)= 10" <br /> pipe measurement(A). <br /> 7.) (Z)-2" =C (10"-2"=8") <br /> Upper Tube Length = 6-112"+(A) C=8" <br /> NOTE: You must find the actual tank capacity 7,) Is 8"less than 6-112"? <br /> number that correlates to the 6-112"+(A)depth <br /> for the station records. This number may also NO Measure the distance from the top of the <br /> be used for the purposes of calibrating an FSA-400 Face Seal Adaptor installed on the <br /> electronic tank level system. riser pipe to the inside,top lip of the storage <br /> tank and obtain measurement(A). <br /> e Registered T.M.-Owens Coming Fibergtass Corporation Upper tube length=C+(A) <br /> 64 <br />